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d480ace0 PM |
1 | /* drivers/video/msm_fb/mddi_client_dummy.c |
2 | * | |
3 | * Support for "dummy" mddi client devices which require no | |
4 | * special initialization code. | |
5 | * | |
6 | * Copyright (C) 2007 Google Incorporated | |
7 | * | |
8 | * This software is licensed under the terms of the GNU General Public | |
9 | * License version 2, as published by the Free Software Foundation, and | |
10 | * may be copied, distributed, and modified under those terms. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | */ | |
17 | ||
5a0e3ad6 | 18 | #include <linux/slab.h> |
d480ace0 PM |
19 | #include <linux/module.h> |
20 | #include <linux/kernel.h> | |
21 | #include <linux/platform_device.h> | |
22 | ||
23 | #include <mach/msm_fb.h> | |
24 | ||
25 | struct panel_info { | |
26 | struct platform_device pdev; | |
27 | struct msm_panel_data panel_data; | |
28 | }; | |
29 | ||
30 | static int mddi_dummy_suspend(struct msm_panel_data *panel_data) | |
31 | { | |
32 | return 0; | |
33 | } | |
34 | ||
35 | static int mddi_dummy_resume(struct msm_panel_data *panel_data) | |
36 | { | |
37 | return 0; | |
38 | } | |
39 | ||
40 | static int mddi_dummy_blank(struct msm_panel_data *panel_data) | |
41 | { | |
42 | return 0; | |
43 | } | |
44 | ||
45 | static int mddi_dummy_unblank(struct msm_panel_data *panel_data) | |
46 | { | |
47 | return 0; | |
48 | } | |
49 | ||
50 | static int mddi_dummy_probe(struct platform_device *pdev) | |
51 | { | |
52 | struct msm_mddi_client_data *client_data = pdev->dev.platform_data; | |
53 | struct panel_info *panel = | |
54 | kzalloc(sizeof(struct panel_info), GFP_KERNEL); | |
55 | int ret; | |
56 | if (!panel) | |
57 | return -ENOMEM; | |
58 | platform_set_drvdata(pdev, panel); | |
59 | panel->panel_data.suspend = mddi_dummy_suspend; | |
60 | panel->panel_data.resume = mddi_dummy_resume; | |
61 | panel->panel_data.blank = mddi_dummy_blank; | |
62 | panel->panel_data.unblank = mddi_dummy_unblank; | |
63 | panel->panel_data.caps = MSMFB_CAP_PARTIAL_UPDATES; | |
64 | panel->pdev.name = "msm_panel"; | |
65 | panel->pdev.id = pdev->id; | |
66 | platform_device_add_resources(&panel->pdev, | |
67 | client_data->fb_resource, 1); | |
68 | panel->panel_data.fb_data = client_data->private_client_data; | |
69 | panel->pdev.dev.platform_data = &panel->panel_data; | |
70 | ret = platform_device_register(&panel->pdev); | |
71 | if (ret) { | |
72 | kfree(panel); | |
73 | return ret; | |
74 | } | |
75 | return 0; | |
76 | } | |
77 | ||
78 | static int mddi_dummy_remove(struct platform_device *pdev) | |
79 | { | |
80 | struct panel_info *panel = platform_get_drvdata(pdev); | |
81 | kfree(panel); | |
82 | return 0; | |
83 | } | |
84 | ||
85 | static struct platform_driver mddi_client_dummy = { | |
86 | .probe = mddi_dummy_probe, | |
87 | .remove = mddi_dummy_remove, | |
88 | .driver = { .name = "mddi_c_dummy" }, | |
89 | }; | |
90 | ||
91 | static int __init mddi_client_dummy_init(void) | |
92 | { | |
93 | platform_driver_register(&mddi_client_dummy); | |
94 | return 0; | |
95 | } | |
96 | ||
97 | module_init(mddi_client_dummy_init); | |
98 |